1. A. A number of unique or special situations pose certain problems with respect to sewage disposal. These atypical cases are dealt with as follows.

   1. 1. Apartment complexes, condominium complexes, hotels, motels, and other such complexes shall be connected to a community sewerage system. A commercial treatment facility shall be provided when no existing community sewerage system capable of accepting the additional loading exists.

   2. 2. Single commercial structures, where less than
      1,500 gpd total flow is expected, and where the connection to a community sewerage system to serve other loading sources as well is not required, may utilize either an individual or commercial sewerage system, provided minimum lot size requirements for the use of individual sewerage systems are met.

      1. a. A commercial treatment facility shall be installed for business establishments where the preparation of food and/or drink is the primary business activity.
   3. 3. Treatment facilities for very small trailer parks which contain five trailer spaces or less shall be sized at 400 gallons per day per trailer space.

   4. 4. Where a community sewerage system is not available, structures occupied three days per week or less, and located in a marsh/swamp area or over water, may utilize a limited use sewerage system comprised of the following:

      1. a. a septic tank system consisting of three septic tanks in series (or an acceptable three-cell or three-compartment tank) followed by an automatic chlorination device/system. The first cell shall have a minimum liquid capacity of 500 gallons. The second and third cells shall each have a minimum liquid capacity of 250 gallons. Each of the three septic tanks (or each compartment of a three-cell tank) shall meet all design, material and construction requirements for septic tanks as described in §715 of this Part. In addition to the construction and material requirements in Chapter 7, Subchapter B, the following restrictions/exceptions shall also apply:

         1. i. metal tanks shall not be used;
         2. ii. the tank(s) shall be demonstrated to be water-tight;
         3. iii. fiberglass tanks shall be adequately coated to prevent deterioration by ultraviolet light;
         4. iv. where multiple-compartment single tanks are used, only one access opening, of 6-inch minimum diameter, per cell shall be required; and
         5. v. tanks set below the normal high-water level, shall be anchored or otherwise secured against movement;
         6. vi. the chlorination system shall be provided with a contact chamber of a minimum of 100 gallons, and shall be equipped with an automatic cutoff to prevent flow from the third septic tank/chamber if the chlorine supply is exhausted. Also, the effluent line from the chlorine contact tank shall be protected against entrance of small animals or other pests by use of a corrosion-resistant flap-type gate, screen, or other means approved by the state health officer.
   5. 5. Vessels. Vessels which are permanently moored shall be connected to an approved sewerage system.

Authority Note

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4(A)(6) and R.S. 40:5(9)(20).

Historical Note

HISTORICAL NOTE: Promulgated by the Department of Health and Hospitals, Office of Public Health, LR 28:1361 (June 2002).